JPS6110578U

JPS6110578U - magnetic detection device

Info

Publication number: JPS6110578U
Application number: JP9508384U
Authority: JP
Inventors: 靖夫谷井; 幸夫関根
Original assignee: 三洋電機株式会社
Priority date: 1984-06-25
Filing date: 1984-06-25
Publication date: 1986-01-22

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は本考案による磁気検出装置の正面断面図、第２
図は磁気検出装置の一部を破断した側面図、第３図はセ
ンサユニット部分の斜視図、第４図は磁気抵抗体の基板
上への配置を示す平面図、第５図は磁束密度の分布状態
を示すセンサユニット部分の側面図、第６図は本考案の
センサユニット部分の異なる実施例を示す斜視図である
。第７図は従来の磁気検出装置の正面断面図、第８図は同
じく磁束密度の分布状態を示すセンサユニット部分の側
面図である。１・・・ケース、２ａｔ２ｂ，２ｃ，２ｄ・
・・磁気抵抗体、３・・・センサユニット、４・・・磁
石、５・・・基板、６・・・磁性板、７・・・底板、２
０・・・接着用樹脂。Figure 1 is a front sectional view of the magnetic detection device according to the present invention, Figure 2
The figure is a partially cutaway side view of the magnetic detection device, Figure 3 is a perspective view of the sensor unit, Figure 4 is a plan view showing the arrangement of the magnetoresistive element on the substrate, and Figure 5 is a diagram showing the magnetic flux density. FIG. 6 is a side view of the sensor unit portion showing the distribution state, and FIG. 6 is a perspective view showing a different embodiment of the sensor unit portion of the present invention. FIG. 7 is a front sectional view of a conventional magnetic detection device, and FIG. 8 is a side view of a sensor unit portion showing the distribution of magnetic flux density. 1...Case, 2at 2b, 2c, 2d.
... Magnetoresistive element, 3... Sensor unit, 4... Magnet, 5... Substrate, 6... Magnetic plate, 7... Bottom plate, 2
0... Adhesive resin.

Claims

[Scope of utility model registration request]

A magnetic detection device in which at least two magnetic resistors are provided on a substrate made of a magnetic material, and the substrate is attached to a pole end face of a magnet that applies a bias magnetic field to the magnetic resistors,
A magnetic detection device characterized in that a magnetic plate having a cross-sectional dimension larger than that of the substrate is interposed between the substrate and the pole end face of the magnet.